The SDO science teams says: The Sun unleashed an M-2 (medium-sized) solar flare with a substantial coronal mass ejection (CME) on June 7 that is visually spectacular. The large cloud of particles mushroomed up and fell back down looking as if it covered an area of almost half the solar surface.
Apparently there was a huge solar flare this morning, check out the awesome video!
Link: http://www.universetoday.com/86356/monster-prominence-erupts-from-sun/